/*
 * Copyright (c) 2009 Roman Savelyev
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#ifndef __ATTACHEDENGINE_H__
#define __ATTACHEDENGINE_H__

#include "conuiengine.h"
#include "drawingbuffer.h"
#include "conuiterminal.h"

class CTerminalProxy;

NONSHARABLE_CLASS(CAttachedEngine) : public CConUiEngine, public MDrawer, public MConUiTerminalObserver
    {
public:
    enum TState
        {
        EConstructing,
        EConstructionFailure,
        EConstructedOk
        };
    static CAttachedEngine* NewL(const TDesC8& aTerminalType);
    ~CAttachedEngine();
private: // CConUiEngine
    TSize SurfaceSize();
    void ClearSurface();
    TPoint CursorPos() const;
    void SetCursorPos(const TPoint& aPos);
    void ReadKey(TConsoleKey& aKey, TRequestStatus& aStatus);
    void ReadKeyCancel();
    void DrawRegionL(const CDrawingBuffer& aBuffer, const RRegion& aRegion);
    void DoSetCursorVisible(TBool aVisible);
private: // MDrawer
    ConUiDef::TColor Background() const;
    void SetBackground(ConUiDef::TColor aColor);
    ConUiDef::TColor Foreground() const;
    void SetForeground(ConUiDef::TColor aColor);
    TBool Bold() const;
    void SetBold(TBool aBold);
    TBool InverseVideo() const;
    void SetInverseVideo(TBool aInverseVideo);
    TPoint Pos() const;
    void SetPos(const TPoint& aPos);
    void Write(const TDesC& aOutput);
private: // MConUiTerminalObserver
    void HandleTerminalError(TInt aError);
private:
    CAttachedEngine();
    void ConstructL(const TDesC8& aTerminalType);
    static void CleanupPopObserver(TAny* aSelf);
private:
    TState iState;
    TPoint iPos;
    ConUiDef::TColor iBackground;
    ConUiDef::TColor iForeground;
    TBool iBold;
    TBool iInverseVideo;
    TSize iSize;
    CTerminalProxy* iTerminal;
    };

#endif /* __ATTACHEDENGINE_H__ */
